CN210996379U

CN210996379U - Push rod and piston connecting structure

Info

Publication number: CN210996379U
Application number: CN201922097553.4U
Authority: CN
Inventors: 冯维彦; 卢跃; 刘世洪
Original assignee: Chongqing LK Machinery Co ltd
Current assignee: Chongqing LK Machinery Co ltd
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-07-14
Anticipated expiration: 2029-11-29

Abstract

The utility model relates to a push rod and piston connection technical field just disclose a push rod and piston connection structure, including drift push rod, drift, piston and pull-back device, the equal fixedly connected with spherical connecting block in top of drift push rod and drift, the other end of drift push rod and the equal joint in bottom of piston have the movable block, the inboard of movable block is equipped with recess one. This push rod and piston connection structure, be connected by spherical connecting block sphere between through drift push rod and the piston, and be equipped with the pull-back device, can solve among the prior art that the drift and injection pole cause according to threaded connection between because of the error off-centre and aggravate the difficult problem that wearing and tearing and screw thread are difficult to change after warp, through this design, the room is penetrated and the drift life-span is penetrated to effectual extension injection, and more convenient and fast when changing the model, can also cancel the sealing washer water-sealing problem of original drift position, the cooling water is direct to be connected at the rear end, guarantee the site-cleaning.

Description

Push rod and piston connecting structure

Technical Field

The utility model relates to a push rod and piston connection technical field specifically are a push rod and piston connection structure.

Background

In the prior art, the injection rod and the injection punch head for the die-casting machine are directly connected together through the connector, so that the accumulated errors of installation exist, the rod and the punch head are in hard connection, the punch head is abnormally abraded due to eccentric force, the abnormal wear is better than the direct stress of threads, and the deformed threads are difficult to disassemble and replace.

In order to ensure the service life of the injection chamber and the punch and ensure the convenience in installation, companies develop a new connecting mode of a push rod and a piston, ensure the service life of the injection chamber of the punch and realize the simplicity and high efficiency in installation.

SUMMERY OF THE UTILITY MODEL

Not enough to current push rod and piston connection structure, the utility model provides a push rod and piston connection structure possesses the wearing and tearing that reduce the drift to the injection chamber of more expensive, and the extension is pressed and is penetrated the chamber and press the life's of penetrating the drift advantage, has solved the problem that provides among the above-mentioned background art.

The utility model provides a following technical scheme: the utility model provides a push rod and piston connection structure, includes drift push rod, drift, piston and pull-back device, the equal fixedly connected with spherical connecting block in top of drift push rod and drift, the other end of drift push rod and the equal joint in bottom of piston have the movable block, the inboard of movable block is equipped with recess one, the bottom of the drift push rod other end and the inboard of the bottom of piston all are equipped with recess two, recess one and the sunken and spherical connecting block looks adaptation that recess two formed, the bottom of the drift push rod other end and the bottom of piston all are equipped with the slide, the top fixedly connected with slider of movable block, slide and slider swing joint, the bottom of the drift push rod other end and the equal fixedly connected with fixture block in inboard of the bottom of piston, the inboard fixedly connected with draw-in groove of movable block, fixture block and draw-in groove looks adaptation.

Preferably, the outside swing joint of movable block has the connecting block, the other end fixedly connected with buckle of connecting block, the bottom of drift push rod other end and the inboard of the bottom of piston all are equipped with the fixed slot, the connecting block is fixed in the fixed slot by the fixed stop, the outside fixedly connected with handle of movable block.

Preferably, the inner cavity of the pull-back device is fixedly connected with a motor, the tail end of an output shaft of the motor is fixedly connected with a disc, the outer ring of the disc is fixedly connected with one end of a pull rope, the pull rope is wound on the outer ring of the disc, the other end of the pull rope penetrates through the box wall of the pull-back device and extends to the outer side of the pull-back device, the pull rope is movably connected with the box wall of the pull-back device, the other end of the pull rope is fixedly connected with a fixed rod, the bottom end of the piston is provided with a fixed hole, and the fixed hole is matched with the.

With current push rod and piston connection structure contrast, the utility model discloses possess following beneficial effect:

1. this push rod and piston connection structure, be connected by the ball joint piece between through drift push rod and the piston, and be equipped with the pull-back device, can solve among the prior art that the drift and injection pole cause according to threaded connection between the eccentric aggravation wearing and tearing that cause because of the error and the difficult problem that is difficult to change after the screw thread warp, through this design, the room is penetrated and the drift life-span is penetrated to effectual extension injection, and more convenient and fast when changing the model, can also cancel the sealing washer water-sealing problem of original drift position, the cooling water is direct to be connected at the rear end, guarantee the site-cleaning.

2. This push rod and piston connection structure, pass power through changing original threaded connection into sphere biography power, its lifting surface is bigger, it is more direct, can reduce the wearing and tearing of punch to more expensive injection chamber, and the effective transmission of assurance power is simple with the installation, high efficiency, rotation through the motor, can drive the disc and rotate, the rotation of disc can make the exposed length of stay cord shorten or extend, when the piston extension, the exposed length extension outside of stay cord, when the piston is back contract, the exposed length of stay cord shortens outside, stay cord pulling piston is back to retrieving and contracts, accelerate the shrink of piston, improve the shrink efficiency of piston.

Drawings

FIG. 1 is a front view of the structure of the present invention;

FIG. 2 is a schematic side view of the structural movable block of the present invention;

fig. 3 is an enlarged schematic view of the structure retracting device of the present invention.

In the figure: 1. a punch push rod; 2. a punch; 3. a handle; 4. a spherical connecting block; 5. a fixing hole; 6. fixing the rod; 7. pulling a rope; 8. a retracting device; 9. a motor; 10. a disc; 11. a movable block; 12. a clamping block; 13. a card slot; 14. connecting blocks; 15. a slideway; 16. a fixed plug; 17. fixing grooves; 18. buckling; 19. a slider; 20. a piston; 21. a second groove; 22. and a first groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, a connecting structure of a push rod and a piston comprises a punch push rod 1, a punch 2, a piston 20 and a pull-back device 8, wherein the tops of the punch push rod 1 and the punch 2 are fixedly connected with a spherical connecting block 4, the other end of the punch push rod 1 and the bottom end of the piston 20 are respectively clamped with a movable block 11, the inner side of the movable block 11 is provided with a first groove 22, the bottom end of the other end of the punch push rod 1 and the inner side of the bottom end of the piston 20 are respectively provided with a second groove 21, a recess formed by the first groove 22 and the second groove 21 is matched with the spherical connecting block 4, the punch push rod 1 and the piston 20 are connected by the spherical connecting block and the punch push rod 1 and the punch are connected by the spherical connecting block, so that the traditional threaded connection mode is changed, the stressed area of the spherical connection mode is larger, the spherical connection mode is more direct, the abrasion of the punch to a, High efficiency, can prolong the life-span of pressing the injection chamber and pressing the injection drift, the bottom of drift push rod 1 other end and the bottom of piston 20 all are equipped with slide 15, the top fixedly connected with slider 19 of movable block 11, through slide 15 and slider 19 swing joint, be convenient for take out movable block 11, slide 15 and slider 19 swing joint, the equal fixedly connected with fixture block 12 in the inboard of the bottom of drift push rod 1 other end and piston 20, the inboard fixedly connected with draw-in groove 13 of movable block 11, fixture block 12 and draw-in groove 13 looks adaptation, through fixture block 12 and draw-in groove 13 looks joint, can fix movable block 11 on drift push rod 1 or on piston 20.

Wherein, the outside swing joint of movable block 11 has connecting block 14, the other end fixedly connected with buckle 18 of connecting block 14, the bottom of the 1 other end of drift push rod and the inboard of the bottom of piston 20 all are equipped with fixed slot 17, connecting block 14 is fixed in fixed slot 17 by fixed stopper 16, through fixed stopper 16, can fix movable block 11 on drift push rod 1 or piston 20, prevent when using piston 20 and drift 2 during operation, movable block 11 takes place to break away from, cause the incident, the outside fixedly connected with handle 3 of movable block 11, through handle 3, can outwards spur movable block 11, make fixture block 12 and draw-in groove 13 separate, take out movable block 11, convenient to use person changes drift push rod 1 or drift 2.

Wherein, the inner cavity of the pull-back device 8 is fixedly connected with a motor 9, the tail end of the output shaft of the motor 9 is fixedly connected with a disc 10, the outer ring of the disc 10 is fixedly connected with one end of a pull rope 7, the pull rope 7 is wound on the outer ring of the disc 10, the other end of the pull rope 7 penetrates through the box wall of the pull-back device 8 and extends to the outer side of the pull-back device 8, the pull rope 7 is movably connected with the box wall of the pull-back device 8, the other end of the pull rope 7 is fixedly connected with a fixed rod 6, the bottom end of the piston 20 is provided with a fixed hole 5, the fixed hole 5 is matched with both ends of the fixed rod 6, the disc 10 can be driven to rotate through the rotation of the motor 9, the exposed length of the pull rope 7 can be shortened or extended through the rotation of the disc 10, when the piston 20 is extended, the exposed length of the pull rope 7 is extended, when, the contraction of the piston 20 is accelerated, and the contraction efficiency of the piston 20 is improved.

The working principle is as follows: when the punch pin is used, the punch push rod 1, the piston 20 and the punch pin 2 are connected together for use, when the piston 20 extends, the rotation of the motor 9 extends the exposed length of the pull rope 7, when the piston 20 contracts back, the motor 9 rotates reversely, the exposed length of the pull rope 7 is shortened, the pull rope 7 pulls the piston 20 to contract back, the contraction of the piston 20 is accelerated, the contraction efficiency of the piston 20 is improved, when the punch pin 2 or the punch push rod 1 needs to be replaced, the fixing plug 16 is pulled down, the connecting block 14 is rotated 180 degrees, the handle 3 is held, the movable block 11 is pulled outwards, the clamping groove 13 is separated from the clamping block 12, the sliding block 19 slides in the slideway 15, the movable block 11 is separated from the punch pin push rod 1 or the piston 20, the punch pin push rod 1 or the punch pin 2 can be replaced conveniently, after the replacement is completed, the sliding block 19 slides in the slideway 15, the clamping block 12 is clamped with the clamping groove 13, the movable, the radian formed by the first groove 22 and the second groove 21 is used for fixing the spherical connecting block 4, the punch push rod 1 is fixed on the piston 20, and the punch 2 is fixed on the punch push rod 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a push rod and piston connection structure, includes drift push rod (1), drift (2), piston (20) and pull back device (8), its characterized in that: the top of the punch push rod (1) and the top of the punch (2) are fixedly connected with a spherical connecting block (4), the other end of the punch push rod (1) and the bottom of a piston (20) are respectively and fixedly connected with a movable block (11), a first groove (22) is arranged on the inner side of the movable block (11), a second groove (21) is arranged on the bottom of the other end of the punch push rod (1) and the inner side of the bottom of the piston (20), a recess formed by the first groove (22) and the second groove (21) is matched with the spherical connecting block (4), a slide way (15) is arranged on the bottom of the other end of the punch push rod (1) and the bottom of the piston (20), a slide block (19) is fixedly connected to the top of the movable block (11), the slide way (15) is movably connected with the slide block (19), and a clamping block (12) is fixedly connected to the bottom of the punch push rod (1), the inner side of the movable block (11) is fixedly connected with a clamping groove (13), and the clamping block (12) is matched with the clamping groove (13).

2. A push rod and piston connecting structure according to claim 1, wherein: the outside swing joint of movable block (11) has connecting block (14), the other end fixedly connected with buckle (18) of connecting block (14), the inboard of the bottom of drift push rod (1) other end and the bottom of piston (20) all is equipped with fixed slot (17), connecting block (14) are fixed in fixed slot (17) by fixed stopper (16), the outside fixedly connected with handle (3) of movable block (11).

3. A push rod and piston connecting structure according to claim 1, wherein: the utility model discloses a draw back device, including draw back device (8), inner chamber fixedly connected with motor (9), the terminal fixedly connected with disc (10) of output shaft of motor (9), the outer lane fixedly connected with stay cord (7) of disc (10) one end, just stay cord (7) winding is on the outer lane of disc (10), the other end of stay cord (7) runs through the tank wall of drawing back device (8) and extends to the outside of drawing back device (8), just stay cord (7) and the tank wall swing joint of drawing back device (8), the other end fixedly connected with dead lever (6) of stay cord (7), the bottom of piston (20) is equipped with fixed orifices (5), the both ends homogeneous phase adaptation of fixed orifices (5) and dead lever (6).